PT-2026-43720 · Linux · Linux Kernel

CVE-2026-45853 · Published 2026-05-27 · Updated 2026-07-21

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A memory corruption issue exists in the drm/amdgpu component. The function amdgpu discovery get nps info() allocates memory for ranges using kvcalloc(), which may utilize vmalloc() for large allocations. The use of kfree() to release memory allocated via vmalloc() leads to memory corruption. This is addressed by using kvfree() in the amdgpu gmc get nps memranges() function to safely handle both kmalloc and vmalloc allocations.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-45853

SUSE-SU-2026:3130-1

SUSE-SU-2026:3166-1

Affected Products

Linux Kernel

References · 1073

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45853.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-45853 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-45853 · Vendor Advisory
• https://git.kernel.org/stable/c/f441538893eba6347b983f2904819ca6c99da65e · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-45853 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-45853 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:3166-1 · Vendor Advisory
• https://git.kernel.org/stable/c/0c44d61945c4a80775292d96460aa2f22e62f86c · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-45853 · Vendor Advisory
• https://git.kernel.org/stable/c/16e7e7ad8cdc6b4c4af7f31e262f1494c1b2a55e · Patch
• https://git.kernel.org/stable/c/9ae85b0c1909b6c6bfd2636b04cdaf7f520bf2b5 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:3130-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2026-50372.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-45853 · Security Note
• https://ubuntu.com/security/CVE-2026-45853 · Vendor Advisory